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Orbital localization and delocalization effects in the U 5f 2 configuration: Impurity problem.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Koga, Mikito Liu, Wenjian Dolg, Michael Fulde, Peter |
| Copyright Year | 1998 |
| Abstract | Anderson models, based on quantum chemical studies of the molecule of U(C_8H_8)_2, are applied to investigate the problem of an U impurity in a metal. The special point here is that the U 5f-orbitals are divided into two subsets: an almost completely localized set and a considerably delocalized one. Due to the crystal field, both localized and delocalized U 5f-orbitals affect the low-energy physics. A numerical renormalization group study shows that every fixed point is characterized by a residual local spin and a phase shift. The latter changes between 0 and \pi/2, which indicates the competition between two different fixed points. Such a competition between the different local spins at the fixed points reflects itself in the impurity magnetic susceptibility at high temperatures. These different features cannot be obtained if the special characters of U 5f-orbitals are neglected. |
| Starting Page | 10648 |
| Ending Page | 10654 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevB.57.10648 |
| Volume Number | 57 |
| Alternate Webpage(s) | https://arxiv.org/pdf/cond-mat/9710303v1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevB.57.10648 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
